Time-Frequency Surrogates for Nonstationary Signal Analysis

Abstract : The purpose of the present communication is, after a brief outline of the use of simple surrogates as introduced so far for stationarity tests, to deal with constructions of surrogates in ''time-frequency domains''. Indeed, for transient detection or cross-correlations analysis, one need to construct directly ''surrogate time-frequency distributions'', as opposed to distributions of surrogate time series, and keeping the `geometrical' structure in the plane of the quadratic distribution.
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Communication dans un congrès
8th IMA International Conference on Mathematics in Signal Processing, Cirencester, United Kingdom. IMA, 2008
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Pierre Borgnat, Patrick Flandrin. Time-Frequency Surrogates for Nonstationary Signal Analysis. 8th IMA International Conference on Mathematics in Signal Processing, Cirencester, United Kingdom. IMA, 2008. 〈ensl-00338234〉

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